Divergence in function and expression of the NOD26-like intrinsic proteins in plants

BMC Genomics

Table 1 Functional divergence between groups of the plant NIP subfamily

Group1	Group2	Type-I					Type-II
		θ_I ± S.E.	LRT	p	Q_k> 0.8	Q_k> 0.9	θ_II ± S.E.	Q_k> 0.8
NIP I	II	0.449 ± 0.063	51.3	<0.01	17	8	-0.085 ± 0.163	0
NIP I	III	0.190 ± 0.068	7.7	<0.01	2	0	-0.105 ± 0.175	0
NIP I	IV	0.429 ± 0.087	24.5	<0.01	7	3	0.004 ± 0.178	0
NIP II	III	0.486 ± 0.068	50.6	<0.01	25	11	0.106 ± 0.112	2
NIP II	IV	0.534 ± 0.098	29.4	<0.01	13	3	0.131 ± 0.115	2
NIP III	IV	0.286 ± 0.092	9.7	<0.01	1	1	0.221 ± 0.119	7

Note: θ_I and θ_II, the coefficients of Type-I and Type-II functional divergence between two gene clusters; LRT, Likelihood Ratio Statistic; Q_k, posterior probability. Large Q_kvalue indicates a high possibility that the functional constraint (or the evolutionary rate) or the physicochemical properties of a given amino acid site is different between two clusters.

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